The graphics are quite basic, however they do communite the form finding process.
If you are defining the envelope shape in relation to program efficiency (farm) and urban benefits (maximaze land use), a fair question should be asked:

Are the parameters used enough to achieve your objectivies? Would a mainstream analysis impact on the urban surroundings not also include:
-shadow studies
-wind corredors analysis
-character of ground space generated

I think those are useful tools, but before embarking on this type of approach, please define what is the most important aspect of you project as an architecural program and as a big tall building in Kings Cross (urban). Otherwise the project can end up ticking all the boxes of a politically correct scheme and loose its arrogant and inventive tone. (For instance exploring not only the efficiency of the crops and ateliers but also the type of more personal and poetic decisions on the form finding process: spring/summer/autumn atmospheres, with strong/mild winds, heat gain vs summer functions, etc)

Make it a unique architectural event and not only a efficient building! As mentioned before, model making is a good tool in order to lift the form-finding process to the next level.

Keep progressing!